Utility knife



FIG. 1 is a rear perspective view from above of the invention;

FIG. 2 is a left-side elevational view of the invention;

FIG. 3 is a top view of the invention, the bottom view being a mirror image;

FIG. 4 is a right-side elevational view of the invention;

FIG. 5 is a front end view of the knife as seen in FIG. 2; and,

FIG. 6 is a rear end view of the knife as seen in FIG. 2.

The broken lines depict portions of the utility knife in which the design is embodied that are not considered part of the claimed design. 

CLAIM The ornamental design for a utility knife, as shown and described. 